Nervous distribution of upper limb

Question 1

Number of nerve roots in brachial plexus

Answer 1

5

Question 2

Number of trunks in brachial plexus

Answer 2

3

Question 3

Number of divisions in brachial plexus

Answer 3

2x3

Question 4

Number of cords in brachial plexus

Answer 4

3

Question 5

Number of terminal divisions in brachial plexus

Answer 5

5

Question 6

Order of nerves in brachial plexus

Answer 6

Roots, trunks, divisions, cords, branches

Question 7

Spinal segments supplying upper trunk

Answer 7

C5, C6

Question 8

Spinal segments supplying middle trunk

Answer 8

C7

Question 9

Spinal segments supplying lower trunk

Answer 9

C8, T1

Question 10

Divisions of trunks

Answer 10

Upper, middle, lower

Question 11

Divisions of brachial plexus

Answer 11

Anterior, posterior

Question 12

Cords of brachial plexus

Answer 12

Medial cord, lateral cord, posterior cord

Question 13

Divisions supplying medial cord

Answer 13

Lower anterior division

Question 14

Divisions supplying lateral cord

Answer 14

Upper, middle anterior division

Question 15

Divisions supplying posterior cord

Answer 15

All 3 posterior parts of posterior division

Question 16

Main upper limb nerves

Answer 16

Ulnar
Median
Radius
Musculocutaneous 
Axillary

Question 17

Upper limb nerves arising from medial cord

Answer 17

Ulnar nerve

Medial root of median nerve

Question 18

Upper limb nerves arising from lateral cord

Answer 18

Musculocutaneous nerve

Lateral root of median nerve

Question 19

Upper limb nerves arising from posterior cord

Answer 19

Radial nerve

Axillary nerve